Main.cc: In function ‘int main()’:
Main.cc:3:5: error: ‘string’ was not declared in this scope
string dap_an,bai_lam;
^~~~~~
Main.cc:3:5: note: suggested alternative: ‘struct’
string dap_an,bai_lam;
^~~~~~
struct
Main.cc:4:5: error: ‘cin’ was not declared in this scope
cin >> so_cau_trac_nghiem;
^~~
Main.cc:4:5: note: suggested alternative: ‘main’
cin >> so_cau_trac_nghiem;
^~~
main
Main.cc:5:12: error: ‘dap_an’ was not declared in this scope
cin >> dap_an;
^~~~~~
Main.cc:10:13: error: ‘bai_lam’ was not declared in this scope
cin >> bai_lam;
^~~~~~~
Main.cc:20:3: error: ‘cout’ was not declared in this scope
cout << fixed << setprecision(2) << diem[i] << endl;
^~~~
Main.cc:20:11: error: ‘fixed’ was not declared in this scope
cout << fixed << setprecision(2) << diem[i] << endl;
^~~~~
Main.cc:20:20: error: ‘setprecision’ was not declared in this scope
cout << fixed << setprecision(2) << diem[i] << endl;
^~~~~~~~~~~~
Main.cc:20:50: error: ‘endl’ was not declared in this scope
cout << fixed << setprecision(2) << diem[i] << endl;
^~~~
Main.cc:20:50: note: suggested alternative: ‘enum’
cout << fixed << setprecision(2) << diem[i] << endl;
^~~~
enum